US5834752A - Rotary touch scanner - Google Patents

Rotary touch scanner Download PDF

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Publication number
US5834752A
US5834752A US08/918,986 US91898697A US5834752A US 5834752 A US5834752 A US 5834752A US 91898697 A US91898697 A US 91898697A US 5834752 A US5834752 A US 5834752A
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US
United States
Prior art keywords
point
rotary
light receiving
rotary member
receiving element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/918,986
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English (en)
Inventor
Koji Kumakura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zebrac Co
Original Assignee
Zebrac Co
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Filing date
Publication date
Application filed by Zebrac Co filed Critical Zebrac Co
Priority to US08/918,986 priority Critical patent/US5834752A/en
Application granted granted Critical
Publication of US5834752A publication Critical patent/US5834752A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10831—Arrangement of optical elements, e.g. lenses, mirrors, prisms

Definitions

  • FIG. 1 shows an example of a prior art touch scanner.
  • the touch scanner is composed of an image sensor (e.g., CCD (charge coupled device)) 21, a convex lens 22, a red light emitting device 23, etc.
  • the reference numeral 24 denotes a bar code label.
  • the bar code label 24 is irradiated with red light emitted by the red light emitting device 23.
  • the light reflected from the bar code label 24 is condensed and further focused through the convex lens 22 onto the front surface of the image sensor 21 as a real image thereof.
  • the CCD image sensor 21 is driven to scan the real image of the bar code label pattern focused thereon, to read the bar code pattern.
  • FIGS. 2A and 2B show a first embodiment thereof.
  • the rotary touch scanner comprises an outer frame or enclosure 5; a rotary members or ring 3; a light receiving element 1; a plurality of convex lenses 4; lens rotating means composed of a motor 6, a motor shaft 7, a worm 8 and a worm gear 9, and a battery 11.
  • the depth of field is ⁇ 5 mm from the bar code label read position when a label of 13 positions prescribed by JAN is read.
  • JAN implies Japanese Article Numbers indicative of commodity bar code numbers prescribed by Japanese Industrial Standard.
  • the resolution can be increased by simply reducing the aperture width of the light receiving element 1.
  • the size of the CCD sensor since the size of the CCD sensor must be reduced in order to increase the resolution, there exists a limit of reduction of the size of the CCD sensor and further a higher technology is required.
  • a pin-point type light receiving element can be used, without use of any high costly CCD sensor and an electronic circuit for driving and controlling the CCD sensor, the cost of the light receiving element can be reduced extremely.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Input (AREA)
  • Facsimile Scanning Arrangements (AREA)
US08/918,986 1994-07-27 1997-08-27 Rotary touch scanner Expired - Fee Related US5834752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US08/918,986 US5834752A (en) 1994-07-27 1997-08-27 Rotary touch scanner

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP6-175602 1994-07-27
JP6175602A JPH0844816A (ja) 1994-07-27 1994-07-27 回転式タッチスキャナ
US50799495A 1995-07-27 1995-07-27
US08/918,986 US5834752A (en) 1994-07-27 1997-08-27 Rotary touch scanner

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US50799495A Continuation 1994-07-27 1995-07-27

Publications (1)

Publication Number Publication Date
US5834752A true US5834752A (en) 1998-11-10

Family

ID=15998966

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/918,986 Expired - Fee Related US5834752A (en) 1994-07-27 1997-08-27 Rotary touch scanner

Country Status (2)

Country Link
US (1) US5834752A (ja)
JP (1) JPH0844816A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060098433A1 (en) * 2000-03-17 2006-05-11 Accu-Sort Systems, Inc. Coplanar camera scanning system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689744A (en) * 1970-09-22 1972-09-05 Ernest Wildhaber Method and apparatus for scanning characters
US4692603A (en) * 1985-04-01 1987-09-08 Cauzin Systems, Incorporated Optical reader for printed bit-encoded data and method of reading same
US4939356A (en) * 1989-05-02 1990-07-03 Spectra-Physics, Inc. Bar code scanner with asterisk scan pattern
US5039184A (en) * 1988-06-24 1991-08-13 Fujitsu Limited Optical beam scanner for bar-code
US5291319A (en) * 1992-12-11 1994-03-01 Xerox Corporation Rotating disc optical synchronization system using binary diffractive optical elements
US5559320A (en) * 1995-05-19 1996-09-24 Microscan Systems Incorporated Mounting and balancing system for rotating polygon mirror in a bar code scanner
US5637854A (en) * 1995-09-22 1997-06-10 Microscan Systems Incorporated Optical bar code scanner having object detection
US5705799A (en) * 1990-05-08 1998-01-06 Symbol Technologies, Inc. Miniature optical scanning assembly for barcode readers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689744A (en) * 1970-09-22 1972-09-05 Ernest Wildhaber Method and apparatus for scanning characters
US4692603A (en) * 1985-04-01 1987-09-08 Cauzin Systems, Incorporated Optical reader for printed bit-encoded data and method of reading same
US5039184A (en) * 1988-06-24 1991-08-13 Fujitsu Limited Optical beam scanner for bar-code
US4939356A (en) * 1989-05-02 1990-07-03 Spectra-Physics, Inc. Bar code scanner with asterisk scan pattern
US5705799A (en) * 1990-05-08 1998-01-06 Symbol Technologies, Inc. Miniature optical scanning assembly for barcode readers
US5291319A (en) * 1992-12-11 1994-03-01 Xerox Corporation Rotating disc optical synchronization system using binary diffractive optical elements
US5559320A (en) * 1995-05-19 1996-09-24 Microscan Systems Incorporated Mounting and balancing system for rotating polygon mirror in a bar code scanner
US5637854A (en) * 1995-09-22 1997-06-10 Microscan Systems Incorporated Optical bar code scanner having object detection

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060098433A1 (en) * 2000-03-17 2006-05-11 Accu-Sort Systems, Inc. Coplanar camera scanning system
US7548274B2 (en) 2000-03-17 2009-06-16 Accu-Sort Systems, Inc. Coplanar camera scanning system
US9088683B2 (en) 2000-03-17 2015-07-21 Datalogic Automation, Inc. Coplanar camera scanning system

Also Published As

Publication number Publication date
JPH0844816A (ja) 1996-02-16

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